public class Sink {
    Sink next;
    
    public Sink() {}
    
    public Stack<Choicepoint> fishFor
        (String name, int arity, Compound term, int choice,
         Prolog prolog, Unifier unifier, int cutIndex,
         Stack<Conjunct> continuation, Stack<Choicepoint> choicepoints) {
        
        choicepoints.head.dead = true;
        System.out.println("%% Warning: " + name + "/" + arity + " does not exist.");
        
        return null;
    }
}
